May 29, 2023
Jervois Mansion: Laying firm foundations
Here’s a sneak preview to update you on what’s going on at the Jervois Mansion worksite. To lay a firm foundation, two types of essential work are currently being carried out.

The first is putting in place bored pilings for the six blocks with about 40% work completed as of 9 May.

Also on the same day, about 45% of pilings for Earth Retaining Stabilizing Structure (ERSS) was completed. The ERSS pilings must be done before excavation work for the basement can commence.

We’ll be providing more updates as the work progresses, so be sure to check out our social media platforms periodically!

The main contractor and consultants in intense discussion on the procedure for the piling works.

A supervisor from the main contractor with some workers at the worksite all bright-eyed and bushy-tailed and ready to start work.

All hands on deck as equipment get into place.

Boring of Pile – Hoisting of boring bucket new Bored pile location.

Welding of Casing – closing up of Bored Pile casing via welding.

Bored Pile – cleaning and levelling of bored pile base from loose debris after final depth confirmation.

Pile Rebar Cage – Hoisting of pile reinforcement cage according to its size after pile depth is finalised.

Measuring and checking the depth of a bored pile and the diameter of its casing to ensure conformity to design specifications.

The Kentledge system (a system of weights) used to load-test piled foundations.

The rig for Deep Cement Mixing / Grout Mixed Pile used to inject solidification materials that mixes cement with water into excavated holes to build columns.

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